Question

2006 Ford F-150 tire size?

I have a 2006 F-150 that came with 17 inch rims. I just purchased a set of original Ford aluminum 18 inch rims. Is it safe to use a different tire size than the post on the truck states?

The original tire size is 235/75R17, the closest new sizes on 18 inch rims were 275/65/18 or 265/65/18. Can the truck be calibrated to the larger rim without problems to the drive train or to safety issues?

The 265s should work. There will be a 2.2% speedo error, so when your speedo says 60 mph, you will actually be going 61.3 mph. Also your new tire will have a larger diameter, but not too much, only .7 of an inch.

The 265s should work. There will be a 2.2% speedo error, so when your speedo says 60 mph, you will actually be going 61.3 mph. Also your new tire will have a larger diameter, but not too much, only .7 of an inch.